45+ Lawn Mower Starts Then Stops. I have a briggs and stratton mower that runs for a few seconds after being primed and then stops. Lawn mower starts, then stops.
For lawn mowers that have an ignition switch, then you can start checking this part. Use one hand to hold the engine stop lever in the operating position. The following is a simple checklist you can follow to help isolate a possible cause.
Fuel problems and ignition problems.
It could be from a dirty carburetor, a malfunctioning spark plug, insufficient flow of gas to the engine or a clogged air filter. Power lawn mowers can be dangerous even when used properly. Never fill the tank with the lawn mowers — a tree's worst enemy. There are a lot of things that can when i first start my mower, it starts up find.